CompTIA Network+ (N10-009) — Question 243

Which of the following describes the best reason for using BGP?

Answer options

• A. Preventing a loop within a LAN
• B. Improving reconvergence times
• C. Exchanging router updates with a different ISP
• D. Sharing routes with a Layer 3 switch

Correct answer: C

Explanation

The correct answer is C because BGP (Border Gateway Protocol) is specifically designed for exchanging routing information between different autonomous systems, particularly with ISPs. Options A and D focus on local area network issues, while B is related to the speed of reconvergence, which is not the primary purpose of BGP.